43401003 has 4 divisors (see below), whose sum is σ = 57868008. Its totient is φ = 28934000.

The previous prime is 43400999. The next prime is 43401031. The reversal of 43401003 is 30010434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43401003 - 2² = 43400999 is a prime.

It is a super-2 number, since 2×43401003² = 3767294122812018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43401203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7233498 + ... + 7233503.

It is an arithmetic number, because the mean of its divisors is an integer number (14467002).

Almost surely, 2^43401003 is an apocalyptic number.

43401003 is a deficient number, since it is larger than the sum of its proper divisors (14467005).

43401003 is a wasteful number, since it uses less digits than its factorization.

43401003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14467004.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 43401003 is about 6587.9437611443. The cubic root of 43401003 is about 351.4254870460.

Adding to 43401003 its reverse (30010434), we get a palindrome (73411437).

The spelling of 43401003 in words is "forty-three million, four hundred one thousand, three".